Well, “two different liquids” is one theory to account for the fine-tuning of water for life:
Water, the most commonplace of liquids, is also the strangest. It has at least 66 properties that differ from most liquids – high surface tension, high heat capacity, high melting and boiling points and low compressibility. One school of thought is that water is not a complicated liquid but ‘two simple liquids with a complicated relationship’. For some, this statement contradicts the basic principles of physical chemistry; for others it explains just why water behaves in such an anomalous way.
Over the last decade the academic arguments have reached boiling point. ‘[It’s] bringing out very strong, almost religious opinions among different scientists,’ says Anders Nilsson, a chemical physicist with appointments at Stockholm University in Sweden and Stanford University in the US. Chemists have attributed water’s strange properties to the tetrahedrally arranged hydrogen-bonding networks that it forms, but exactly what is going on, particularly when water is in a supercooled state, is still up for debate.Rachel Brazil, “The weirdness of water” at Chemistry World
But the real goal is to rule out design in nature, which the controversialists can’t do, hence the “religious” nature of the controversy.
One wonders what gimcrack will be thunk up to explain it all away. “Two liquids” probably isn’t enough.